I very much doubt that Sony, Sharp or Panasonic will be a meaningful player in TV by decade's end. Each is falling apart for some similar and some different reasons. The global economy is going to suck for the next several years. And, to make matters worse, by 2017-18, the Koreans will have been able to ramp up OLED and convince the world that it's the only technology worthy of your TV dollars at the high end. With cheap Taiwanese -- and mainland Chinese -- LCDs as alternatives, where does that leave Japan? Hint: Not as important people in the TV business.
If they read and understood "The Innovator's Dilemma", they'd just get out now and cut their losses. (Note: This isn't an option for Sharp, but it most certainly is for Panasonic and Sony.)
There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.